Stress and strain — practice question

A stress-strain graph for a wire is shown. What is the Young modulus of the material from which the wire is made?

• A$6.7 \times 10^{-12}\,\text{Pa}$
• B$6.7 \times 10^{-9}\,\text{Pa}$
• C$1.5 \times 10^8\,\text{Pa}$
• D$1.5 \times 10^{11}\,\text{Pa}$